P.04.3 SERUM PEPSINOGEN II LEVELS AND IGG ANTI HELICOBACTER PYLORI ANTIBODIES MAY REPRESENT A NON-INVASIVE METHOD FOR THE DIAGNOSIS AND MONITORING OF H PYLORI-RELATED GASTRITIS. (24th February 2016) - Franceschi, M.; Panozzo, M.P.; Messina, O.; Ferronato, A.; Tomba, F.; Sella, D.; Antico, A.; Di Mario, F.; Baldassarre, G.